NO.PZ2022123001000031
问题如下:
Afund had the following experience over the past 10 years:
The target semideviation of the returns over the 10 years if the target is 2% is closest to:
选项:
A.
1.42%
B.
1.50%
C.
2.01%
解释:
The target semi-deviation is the square root of the sum of the squared deviations from the target, divided by n − 1:
这个表格右侧的三个数怎么算出来的,麻烦举个例子